Event Number 2770

M2.8 km W of Orinda, CA - 2025/04/02 05:43:48 37.874 -122.216 M2.8 6.9 3 km W of Orinda, CA at 2025/04/02 05:43:48 UTC / 2025/04/01 22:43:48 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 8.0km (5.0 mi)
HYPO2K = 3.8km (2.4 mi) Magnitude = 0.3

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2025/04/02 05:43:48  37.874 -122.216  M2.8   6.9 3 km W of Orinda, CA

EQPROC Summary:

2770 2025Apr 2  543 49.26  37.8866 -122.3061 16.04 0.83  9.9 61.2 159  5
GLFBZ SHZ PN 01 2025Apr 2  543 58.60 P ?1  51.0   0.19
RE9A7 EHZ AM 00 2025Apr 2  544  2.85 P ?0  80.8   0.10
B058  EHZ PB -- 2025Apr 2  544  9.65 P ?3 136.7  -0.42
B057  EHZ PB -- 2025Apr 2  543 55.02 P U0  27.7  -0.00
B054  EHZ PB -- 2025Apr 2  543 50.07 P U0   9.9  -2.67

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH-M RMS   ERH   ERZ  XMAG1 FMAG1 PMAG GEOID-DEP
 2025-04-02  0543 49.48  37 53.347 122W15.073  2.01  0.54  5.09 46.11        2.51  2.51E    1.99
                                                                                          SOURCE
 NSTA NPHS  DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH  N.XMG-XMMAD-T   N.FMG-FMMAD-T  L F X
    5    5   5.6  Emb  164  20   2   4   0   5      -                          4  2.51 E  W W  

 XMAG2-N.XMG2-XMMAD-T-S  FMAG2-N.FMG2-FMMAD-T-S  PREF.MAG-N.PMAG-PRMAD-T DEPDAT NS ZT TYP
                                                     2.51      4  2.51 E     11  4  M CRH
 REGION=                          

 STA NET COM L CR DIST AZM  AN P/S WT   SEC (TOBS -TCAL -DLY  =RES)  WT   SR  INFO  CAL  DUR-W-FMAG-T -AMP-U-PER-W-XMAG-T DE
 B054 PB EHZ -- A  5.6 125  90  PU    50.07  0.59  1.37 0.00 -0.78* 1.07  W  1.000 0.00 43.0   2.65 E                        
 B057 PB EHZ -- A 31.6 300  90  PU    55.02  5.54  5.60 0.00 -0.06  1.07  W  1.000 0.00 27.0   2.36 E                        
 GLFBZPN SHZ 01 A 50.1 169  90  P  1  58.60  9.12  8.62 0.00  0.50  0.80  W  1.000 0.00 19.0   2.08 E                        
 RE9A7AM EHZ 00 A 76.0 104  90  P     62.85 13.37 12.82 0.00  0.55* 1.07  W  1.000 0.00  130 2 3.97 E                        
 B058 PB EHZ -- A134.7 153  90  P  3  69.65 20.17 22.37 0.00 -2.20* 0.00  W  0.000 0.00 1.00 4                               

Event Files: April 2025